RingConn
RingConn Gen 2
$386
Released 2024-08
Best Smart Rings · head-to-head
RingConn Gen 2 vs Circular Ring 2
A sourced, side-by-side comparison. Circular Ring 2 is cheaper at $379. Every spec and price links to its source.
Circular
Circular Ring 2
$379Cheaper
Released 2025-08
Which is better: the RingConn Gen 2 or Circular Ring 2?
On the specs we track, they're closely matched. The Circular Ring 2 is the cheaper at $379.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | RingConn Gen 2 | Circular Ring 2 |
|---|---|---|
| US price | $386 | $379 |
| Brand | RingConn | Circular |
| Released | 2024-08 | 2025-08 |
| Material | Aerospace-grade titanium alloy with medical-grade epoxy resin inner layer | Titanium (PVD coating on premium finishes) |
| Weight (g) | 2-3 | 3 |
| Battery days | 12 | 8 |
| Spo2 | Yes | Yes |
| Temperature sensor | Yes | Yes |
| Ecg | No | Yes |
| Subscription required | No | No |
| Water resistance (m) | 100 | — |
Sources — RingConn Gen 2: ringconn.com (verified 2026-06-15). Circular Ring 2: shop.circular.xyz (verified 2026-06-15).
What's the difference between the RingConn Gen 2 and Circular Ring 2?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Material: RingConn Gen 2 Aerospace-grade titanium alloy with medical-grade epoxy resin inner layer vs Circular Ring 2 Titanium (PVD coating on premium finishes)
- Weight (g): RingConn Gen 2 2-3 vs Circular Ring 2 3
- Battery days: RingConn Gen 2 12 vs Circular Ring 2 8
- Ecg: RingConn Gen 2 false vs Circular Ring 2 true
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
RingConn Gen 2
Two whitelisted testers hands-on reviewed the exact RingConn Gen 2 (2024, $299 titanium model, not the later Air): Digital Trends (two weeks of wear) and TechRadar (several weeks). Both praise its light, subscription-free, stylish design, first-in-class sleep apnea monitoring, and long battery life versus rival rings, but fault weak fitness tracking and shallow app analytics. (2 sourced reviews, 2 lab-tested.)
Praised: Light, comfortable, discreet titanium design that doesn't look like tech; No subscription and affordable versus Oura/Samsung; Sleep apnea monitoring (a smart-ring first).
Flagged: Weak fitness/workout tracking, no automatic activity detection, only run/walk/cycle; App analytics lack depth; you must interpret the data yourself; Real-world battery fell short of the 10-12 day claim (six to eight days measured).
Circular Ring 2
No sourced tester review yet.